/* ==================== Blog Hero Section ==================== */
.blog-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    padding: calc(var(--navbar-height, 80px) + 60px) 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.blog-hero-content {
    position: relative;
    z-index: 1;
}

.blog-hero-badge {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.lang-badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.fallback-badge {
    background: rgba(255, 200, 0, 0.3);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
}

/* ==================== Language Filter ==================== */
.blog-lang-filter {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.lang-filter-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

.lang-filter-buttons {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
    justify-content: center;
}

.lang-filter-btn {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.lang-filter-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.lang-filter-btn.active {
    background: white;
    color: var(--color-accent);
    font-weight: 600;
}

/* Mobile language filter */
@media (max-width: 768px) {
    .blog-lang-filter {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .lang-filter-buttons {
        gap: 4px;
    }

    .lang-filter-btn {
        padding: 4px 10px;
        font-size: 0.75rem;
    }
}

.blog-hero-title {
    color: white;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.blog-hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== Blog Layout ==================== */
.blog-content {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-4xl);
}

/* 大屏幕：两栏布局 */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr 320px;  /* 左侧自适应，右侧固定320px */
    gap: 40px;
    align-items: start;
}

/* 移动端：单栏上下排列 */
@media (max-width: 992px) {
    .blog-layout {
        grid-template-columns: 1fr;  /* 变成单列 */
    }

    .blog-sidebar {
        order: -1;  /* 边栏显示在上面 */
        display: grid;
        grid-template-columns: 1fr 1fr;  /* 两个小部件并排 */
        gap: 20px;
    }
}

@media (max-width: 576px) {
    .blog-sidebar {
        grid-template-columns: 1fr;  /* 移动端变成单列 */
    }
}

/* 推荐博客样式 */
.recommended-posts {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.recommended-post {
    display: flex;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.recommended-post img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
}

.recommended-post-info h4 {
    font-size: 0.875rem;
    line-height: 1.3;
    margin-bottom: 4px;
}

.recommended-post-info .views {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 分类带数量 */
.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background 0.2s;
}

.category-item:hover {
    background: var(--bg-card);
}

.category-item .count {
    background: var(--bg-secondary);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
}

/* ==================== Blog Grid ==================== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-xl);
}

/* ==================== Blog Card ==================== */
.blog-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    opacity: 0;
    transform: translateY(20px);
}

.blog-card.revealed {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.blog-card-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

.featured-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    background: var(--color-primary);
    color: var(--text-inverse);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.blog-card-content {
    padding: var(--space-lg);
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
}

.blog-card-category {
    background: var(--color-primary);
    color: var(--text-inverse);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    transition: background var(--transition-fast);
}

.blog-card-category:hover {
    background: var(--color-accent);
}

.meta-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.blog-card-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--color-primary);
}

.blog-card-excerpt {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.blog-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-color);
}

.blog-card-author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.author-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.author-name {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.read-time {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ==================== Pagination ==================== */
.blog-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border-color);
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.pagination-numbers {
    display: flex;
    gap: var(--space-xs);
}

.pagination-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination-item:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.pagination-item.active {
    background: var(--color-primary);
    color: white;
}

/* ==================== Empty State ==================== */
.blog-empty {
    text-align: center;
    padding: var(--space-4xl) var(--space-lg);
    color: var(--text-muted);
}

.blog-empty svg {
    margin-bottom: var(--space-lg);
    opacity: 0.5;
}

.blog-empty h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.blog-empty p {
    color: var(--text-secondary);
}

/* ==================== Sidebar ==================== */
.blog-sidebar {
    position: sticky;
    top: calc(var(--navbar-height, 80px) + var(--space-lg));
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.sidebar-widget {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    border: 1px solid var(--border-color);
}

.widget-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.widget-title svg {
    color: var(--color-primary);
}

/* Categories Widget */
.sidebar-categories {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.category-item:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.category-item.active {
    background: var(--color-primary);
    color: white;
}

.category-count {
    background: var(--bg-secondary);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
}

.category-item.active .category-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Popular Posts Widget */
.popular-posts {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.popular-post {
    display: flex;
    gap: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.popular-post:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.popular-post-image {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.popular-post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.popular-post-content h4 {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--space-xs);
}

.popular-post-content h4 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.popular-post-content h4 a:hover {
    color: var(--color-primary);
}

.popular-post-date {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Language Selector Widget */
.language-selector-blog {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.lang-option {
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.8rem;
    transition: all var(--transition-fast);
}

.lang-option:hover {
    background: var(--color-primary);
    color: white;
}

.lang-option.active {
    background: var(--color-primary);
    color: white;
}

/* ==================== Responsive ==================== */
@media (max-width: 1200px) {
    .blog-layout {
        grid-template-columns: 1fr 300px;
        gap: var(--space-2xl);
    }
}

@media (max-width: 992px) {
    .blog-layout {
        grid-template-columns: 1fr;
    }

    .blog-sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .sidebar-widget {
        flex: 1;
        min-width: 280px;
    }

    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: calc(var(--navbar-height, 70px) + 40px) 0 60px;
    }

    .blog-hero-title {
        font-size: 2rem;
    }

    .blog-hero-subtitle {
        font-size: 1rem;
    }

    .blog-sidebar {
        flex-direction: column;
    }

    .sidebar-widget {
        min-width: 100%;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .blog-card-content {
        padding: var(--space-md);
    }

    .blog-card-title {
        font-size: 1.1rem;
    }

    .blog-pagination {
        flex-wrap: wrap;
    }

    .pagination-numbers {
        order: -1;
        width: 100%;
        justify-content: center;
        margin-bottom: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .blog-hero {
        padding: calc(var(--navbar-height, 60px) + 30px) 0 40px;
    }

    .blog-hero-title {
        font-size: 1.75rem;
    }

    .blog-content {
        padding-top: var(--space-xl);
    }

    .pagination-item {
        width: 36px;
        height: 36px;
    }
}